| Mason City to Mansfield | 3,998.06 mi (6,434.26 km) |
| Mason City to March | 4,065.13 mi (6,542.20 km) |
| Mason City to Margate | 4,154.83 mi (6,686.55 km) |
| Mason City to Market Drayton | 3,960.16 mi (6,373.26 km) |
| Mason City to Market Harborough | 4,031.57 mi (6,488.18 km) |
| Mason City to Marlow | 4,069.31 mi (6,548.92 km) |
| Mason City to Marple | 3,958.41 mi (6,370.44 km) |
| Mason City to Marton | 3,949.39 mi (6,355.93 km) |
| Mason City to Maryport | 3,863.48 mi (6,217.68 km) |
| Mason City to Matlock | 3,985.59 mi (6,414.18 km) |
| Mason City to Melksham | 4,026.51 mi (6,480.04 km) |
| Mason City to Meltham | 3,959.21 mi (6,371.73 km) |
| Mason City to Melton Mowbray | 4,022.53 mi (6,473.64 km) |
| Mason City to Merthyr Tudful | 3,967.57 mi (6,385.18 km) |
| Mason City to Methil | 3,832.09 mi (6,167.16 km) |
